Numerical damage assessment in T700/epoxy composite laminate under low and high velocity impacts using a modified hashin-puck criterion

IF 7.1 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composite Structures Pub Date : 2025-08-22 DOI:10.1016/j.compstruct.2025.119578

K. Zouggar , D. Guerraiche , M. Rabouh , K. Guerraiche , B. Haddag , M.W. Harmel , K. Madani , R.D.S.G. Campilho

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Abstract

The present study explores the mechanisms of damage propagation in T700/epoxy carbon-fiber reinforced plastic (CFRP) laminates subjected to impact, with a particular focus on low (LVI) and high velocity impact (HVI). To this end, a modified Hashin-Puck criterion was developed and validated with literature data. The nonlinear material behaviour and damage evolution were investigated through finite element (FE) simulations. The derived outcomes include impactor kinetic energy, impact force, impact duration, and damage classification and evolution at several scales within the structures, encompassing fiber failure, matrix cracking, delamination, and erosion. The results indicate that HVI impacts generates higher impact forces and energy magnitudes compared to LVI. The calculated forces ratio between HVI and LVI vary from 3.46 to 16.7, while the kinetic energy ratios range from 4.01 to 16.2, highlighting a prominent increase of impact forces with velocity. Additionally, the measured eroded distance in HVI reached 7.46 % of the specimen length, reflecting the increased material sensitivity to higher energy impacts. Furthermore, the analysis of induced damage demonstrates the model’s high accuracy in predicting experimental values and observations. Notably, it was shown effective in characterizing damage within the interlayer and across the material depth in the damaged zone.

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基于改进哈希-帕克准则的T700/环氧复合材料层合板低、高速冲击损伤数值评估

本研究探讨了T700/环氧碳纤维增强塑料（CFRP）层压板在冲击下的损伤扩展机制，特别关注低（LVI）和高速冲击（HVI）。为此，我们制定了一个改进的Hashin-Puck判据，并用文献资料进行了验证。通过有限元模拟研究了材料的非线性行为和损伤演化。得出的结果包括冲击器动能、冲击力、冲击持续时间，以及结构内部几个尺度上的损伤分类和演变，包括纤维破坏、基体开裂、分层和侵蚀。结果表明，与LVI相比，HVI撞击产生了更高的冲击力和能量。计算得到HVI与LVI之间的力比在3.46 ~ 16.7之间，动能比在4.01 ~ 16.2之间，冲击力随速度的增加而显著增加。此外，HVI测量的侵蚀距离达到试件长度的7.46%，反映了材料对高能量冲击的敏感性增加。此外，对诱导损伤的分析表明，该模型在预测实验值和观测值方面具有较高的准确性。值得注意的是，它被证明是有效的表征损伤间层和跨材料深度在损伤区。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Composite Structures 工程技术-材料科学：复合

CiteScore

12.00

自引率

12.70%

发文量

1246

审稿时长

78 days

期刊介绍： The past few decades have seen outstanding advances in the use of composite materials in structural applications. There can be little doubt that, within engineering circles, composites have revolutionised traditional design concepts and made possible an unparalleled range of new and exciting possibilities as viable materials for construction. Composite Structures, an International Journal, disseminates knowledge between users, manufacturers, designers and researchers involved in structures or structural components manufactured using composite materials. The journal publishes papers which contribute to knowledge in the use of composite materials in engineering structures. Papers deal with design, research and development studies, experimental investigations, theoretical analysis and fabrication techniques relevant to the application of composites in load-bearing components for assemblies, ranging from individual components such as plates and shells to complete composite structures.